Home / 35,643.50-49,176-20,535.76

Finding the Fourth Proportional to 35,643.50, 49,176 and 20,535.76

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Solution

The fourth proportional to 35,643.50, 49,176 and 20,535.76 is: 28,332.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,643.50 : 49,176 = 20,535.76 : x
  2. Step 2: Convert to fraction form
    35,643.50/49,176 = 20,535.76/x
  3. Step 3: Cross multiply
    35,643.50x = 49,176 × 20,535.76
  4. Step 4: Simplify right side
    35,643.50x = 1,009,866,533.76
  5. Step 5: Solve for x
    x = 1,009,866,533.76/35,643.50
  6. Step 6: Final answer
    x = 28,332.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.